A1.2 nf parallel-plate capacitor has an air gap between its plates. its capacitance increases by 3.0 nf when the gap is filled by a dielectric
what is the dielectric constant of that dielectric?

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward